What is this tool does: Help you to calculate money! Let's say an activity,
You paid $50
Tom paid $40
Jerry paid $10
And you have 4 people in total
How we calculate?
This tool will give you below output directly:

--------Receipt--------
This activity cost 100 in total. 25.00 for each person.
Jerry need to pay You 15.00
Person1 need to pay You 10.00
Person1 need to pay Tom 15.00

How to use this tool:

1. Open index.html in Chrome
2. Clicking on add/remove item to add rows
3. Input the total ppl, and clicking on Calc!
4. It applies for any way you want to calculate, check it out!